The brand new trailer take to rig shown in Figure 1 is actually calibrated into the accordance toward calibration contours shown into the Shape step three

The brand new trailer take to rig shown in Figure 1 is actually calibrated into the accordance toward calibration contours shown into the Shape step three

S6.1.10.2 The center of gravity peak of your ballast on the stacked manage truck might be less than twenty four inches over the the top of tractor’s fifth wheel.

The latest braking system climate is measured by the connect-kind of thermocouples strung about calculate center of facing length and width of the most extremely heavily stacked shoe otherwise disc pad, that for each and every braking system, due to the fact found for the Contour 2

S6.step one.ten.step three The latest control truck have an individual shaft which have a good GAWR from 18,100000 lbs and you will a length, counted on transverse centerline of your own shaft towards centerline of the kingpin, regarding 258 ±6 inches.

S6.step 1.ten.cuatro The fresh new manage trailer are stacked to ensure their shaft was piled from the 4,five hundred lbs plus the tractor was loaded so you’re able to visit the web site the GVWR, loaded above the kingpin merely, into the tractor’s fifth controls adjusted therefore the load towards for every axle measured within tire-ground interface are most nearly proportional to the axles’ respective GAWRs, as opposed to surpassing the fresh new GAWR of the tractor’s axle otherwise axles or handle trailer’s axle.

S6.1.11 Special drive criteria. An automobile armed with an interlocking shaft program otherwise a top wheel push system which is interested and you can disengaged by driver is tested on system disengaged.

S6.1.twelve Liftable axles. An automible having good liftable shaft are checked-out on GVWR with this new liftable shaft off and also at unloaded vehicles lbs on liftable shaft upwards.

For the standards regarding S5.step 3.3.step 1 and you will S5.step 3.cuatro.step 1, pressure throughout the trailer test rig tank is actually very first lay within a hundred psi having actuation screening and 95 psi to own launch evaluation.

S6.step one.fourteen Inside the analysis new disaster brake out of pulling automobile significantly less than S5.seven.3(a), the newest line(s) is actually ventilated on the conditions at any time for around step one 2nd and not over about a minute till the emergency prevent begins, given that automobile is swinging within price of which the end will be produced and you will people guidelines manage into the towing vehicles protection method is about status to offer sky and brake handle signals towards the vehicles are towed. Zero braking system software program is created from the time the range(s) try ventilated before emergency prevent begins without tips guide process of parking brake system otherwise pulling vehicles shelter program occurs from the time brand new range(s) is actually ventilated through to the prevent is completed.

For each and every company should, on demand on the National Street Guests Security Administration , promote information about and therefore of one’s compliance solutions it has selected to have a specific car otherwise make/design

S6.step 1.15 Initially brake temperature. Unless of course or even specified, the original brake weather is for around 150 °F and not over two hundred °F.

An additional thermocouple may be hung at the beginning of the fresh decide to try sequence whether your lining don is anticipated to-arrive a beneficial point inducing the first thermocouple to contact the fresh new rubbing surface off a guitar or rotor. Another thermocouple should be installed at a depth of .080 inch and you may discover contained in this step 1 inches circumferentially of the thermocouple installed on .040 inches depth. Getting cardiovascular system grooved shoes otherwise pads, thermocouples try hung in a single-eighth out of an inches to 1-one-fourth out-of an inch of your own groove and as near to the center that one can.

S6.step 1.17 Set of compliance possibilities. In which name brand choices are given, the manufacturer shall get the option once they certifies the vehicle and may perhaps not after that find an alternative to possess the vehicle.

S6.2.step one The newest dynamometer inertia for each controls is the same as brand new load towards wheel for the axle loaded in order to its GAWR. Having a car that have extra GAWRs given for procedure within less speeds, the new GAWR utilized is the fact specified to own a speeds away from fifty miles per hour, otherwise, at the accessibility to producer, any speed higher than 50 miles per hour.

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